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  9/7/2019Pediatric GI Disorders (USMLE Step 2 CK: Pediatrics) Flashcards | Memoranghttps://www.memorangapp.com/flashcards/2720/Pediatric+GI+Disorders/1/3 Multiple ChoiceFlashcards (/premium/9)Power-Up Marketplace (/marketplace/) > USMLE Step 2 CK Flashcards (/premium/9) > Anytime I don't remember something from UWorld, I go straight to Memorang Subscribe (/premium/9/#checkout/year)Pediatric GI Disorders ⚡      Premium Study Set  intussusception Mechanism portion of bowel telescopes into adjacent segmentRisk factors Meckel's diverticulum, lymphoma, Henoch-Schonlein purpura,parasites, polyps, adenovirus, rotavirus, celiac disease, CFSigns/symptoms abrupt abdominal pain, vomiting, blood per rectum(pediatric classic signs are pains is episodic and classically ex knees to chest)Signs/symptoms red currant jelly stool, lethargy, fever, sausage shaped RUQ mass (//d1yboe6750e2cu.cloudfront.net/i/55a4620d3eb26993ab35ad95e69132a2ec071f1b) Diagnostics ultrasound shows target sign , abdominal xray shows smallbowel obstructionTreatment air-contrast barium enema is diagnostic and curative. Otherwisedo surgical intervention. Also make sure to correct electrolyte abnormalities.Mechanism hypertrophy of pyloric sphincterSigns/symptoms nonbilious, projectile emesis with palpable olive-shapedmass in the epigastric region (/)    (/create)   Power (/marketplace/) aasdfasdf   9/7/2019Pediatric GI Disorders (USMLE Step 2 CK: Pediatrics) Flashcards | Memoranghttps://www.memorangapp.com/flashcards/2720/Pediatric+GI+Disorders/2/3 pyloric stenosis (//d1yboe6750e2cu.cloudfront.net/i/18305ac914d322a5104758a4a67d2dfaf044e434) Diagnostics abdominal ultrasound shows hypertrophyTreatment pyloromyotomy, electrolyte correction (//d1yboe6750e2cu.cloudfront.net/i/0efb35856c769cc5bee753ec100d2732181973b4) Meckel's diverticulum Mechanism failure of vitelline duct to obliterateSigns/symptoms painless rectal bleeding, abdominal painDiagnostics technetium-99m pertechnetate (i.e. scintigraphy scan)Treatment surgical excision Hirschsprung's disease Mechanism congenital ↓ ganglion cells in distal colonRisk factors male gender, Down syndrome, Waardenburg's syndrome, MEN2Signs/symptoms failure to pass meconium within 48 hours, biliousvomiting, abdominal distention, explosive discharge of stool on rectal examDiagnostics barium enema shows distal colon narrowing with proximaldilation. Gold standard is full-thickness rectal biopsy.Treatment 2-stage surgical repair involving diverting colostomy and pull-through to reconnect bowel segments later malrotation + volvulus Mechanism abnormal positioning of small intestine causes formation of brous bands that predispose to obstruction and constrict blood owSigns/symptoms newborn with bilious emesis, abdominal pain, distention,blood in stoolDiagnostics upper GI study shows abnormal positioning of ligament of TreitzTreatment NG decompression, IV uids, surgical repair necrotizing enterocolitis Mechanism bowel undergoes necrosis, more common in premature infantsSigns/symptoms abdominal distention, bloody stools, intestinalperforation leading to peritonitis, shock (//d1yboe6750e2cu.cloudfront.net/i/6849f51986e2550044a3fd85d84d6dd3fe54892e) Diagnostics abdominal xray shows dilated bowel loops and pneumatosisintestinalis, abdominal free airTreatment NPO, gastric decompression, TPN, IV antibiotics, possiblesurgical intervention  9/7/2019Pediatric GI Disorders (USMLE Step 2 CK: Pediatrics) Flashcards | Memoranghttps://www.memorangapp.com/flashcards/2720/Pediatric+GI+Disorders/3/3  /)p/)k.com/hc/en--Changelog- CONNECT   Facebook (https://www.facebook.com/memorangapp)   Twitter (https://www.twitter.com/memorangapp) FREE APPS  (https://itunes.apple.com/us/app/memorang/id916615301?mt=8) (https://play.google.com/store/apps/details?id=com.memorangapp.Memorang&hl=en&utm_source=global_co&utm_medium=prtAC-global-none-all-co-pr-py-PartBadges-Oct1515-1)Copyright © 2019 Memorang, Inc. Complications strictures and short-bowel syndrome
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